Traffic marker



July 28, 1931. w. H. THEEL 1,816,502

TRAFFIC MARKER Filed Nov. 24. 1930 fiz'g INVENTOR.

A TTORNEY.

' or the like, having ems- 1, 2a, 1931 NIT-ED sra'ras', PA ENT omen 1r. ram, or 01110460, rumors KAI-m Application fl ed lovembe'r 1 080. emu I'm 497,187. I

slipping upwardly. after, it v as been set or driven into the Another object 'ofthe inv tion is to provide a trafiic marker havin a stem thereon as indicated aboveand provided with longitudinal slots therein -'adapte d to receive an expansion member, providedw cooperate with said stem and-to be forced'f'into the slotted connection with the accompany ng dra 'forminga part thereof. It ishowever to i tions of the stem stem, when the trafiic marker is utin position, thereby exppndifng the di erentporom each other. and forcing the shoulder into the road bed; Other objects of the invention not specifically mentioned will be easily ascertained and understood from the followingdegcription in understood, that the invention is not to be limited or restricted tothe exact. construction or formation shown in the drawings and described in the specification, but that said invention is only to be limited b the see the claim appended hereto. the (iia gs, illustrating a preferred embodiment of theinvention p Fig. 1 is a sectional View taken on line 1-1 of F g. 2 and showing a traflic marker according to the present invention ready to be set in position on the road bed, and

fFl ig. 21is a sectional view taken on line 22 0 1g. 2

Fig. 3 is a detail view showing the lower ends of two oppositely located portions of the stem and especially the shoulders on theend of said portions. v

The trailic marker as, shown in the drawings consists of a plate5 made from any su'itab e material and coated by a cover 6 of rubher or the like. 'On the plate 5, which is and that a plurality of stems maybe attached ,or formed on said-plate without violating the s 1s formedifora'purpo'se to be described later.

lar end 14 of the expansion member is oroed into the stem between the longitudinal 'por-- shown as a circular disc, a stem 7 is 1 rovided extending downwardlyfrom said (1186." His however to be understood, that the plate may be of any desirable and convenient outline spiritof. the invention.

with a series .o ratchet like shoulders 8 which are sjhapedlsq -that the shoulders will act like barbedfhooks preventing an :upward move-' ment. oft-he stem,.;a fter the same has been 'formed oifconcreteior,tlie'like.

Thisf loWer, artoi th'estem is divided into portions by one.v

a plurailty o longitudinal or more slots "extending racially into said stem. On the lower end of each longitudinal portion 9. an inwardly extending shoulder'10 Thellowerrtion of stem 7 isprovided driyenfintqfthe or into aroad An expansion-inemberll consists of a'cir- Y .cular base 12 preferabl so ewhatfi'sinaller than the dimeter 0 the stem 7. top of the base 12 a conical portion '13 i s formed and extends upwardly and ends-into a ball shaped part -The stem is referably made of a resilient metal, so that e longitudinalpplrtions 9 may be spreead from each other. e expansion mem r ispreferably made .from a hard metaL- In order to set the trafiic marker a hole is drilled intothe road bed having a somewhat bigger diameter, than the stem. The 'lobutions thereof. This is possible since the stem is made'from a resilient metal. The shoul-" the ex- 00.

ders 10 on said portion will e ving i'aldiameter which is i pension member underneath t eglobular end and will hold the said member attached to the The whole marker is then placed a ,in position, so that the base of the ex ansion member will rest on the bottom of t e hole drilled into road bed, and that the stem will belocatedinsaid hole. The depth of the hole I f pans'ion member rests on the bottom of the hole. When then the marker plate is forced downwardly in any convenient and suitable -manner, so as to rest on or to be embedded into the road surface the expansion memberwill be driven or forced into the stem thereby expanding the ongitudinal portions 9 and; forcing theratchetteeth 8 intothe ground or the. material 'formin the road bed. The'shape' m of the teeth will t en prevent any upward I movement of. the stem so, that through the engagement of the road bed by said teeth the traflic marker will be held firmlyand securely in 'tion. V

aving described my invention and how the same is to be performed, I claim as newand desire to secure by Letters Patent: v

r In a deviceof the class described a stem havin upwardly and radially extending m shoul ers and consisting of a plurality of lon-.

' fitudinal rtions, each portion having on its ower en an inwardly. extending shoulder, and an expansion member having a conical body'and a globular it per end adapted to be forced between said ongitudinal stem portions and. to be-engaged, and held by the end shoulders on said portions.

Inwitnes's whereof I afiix my si ature. 

